Home / 18,584.32-28,004.36-15,369.72

Finding the Fourth Proportional to 18,584.32, 28,004.36 and 15,369.72

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Solution

The fourth proportional to 18,584.32, 28,004.36 and 15,369.72 is: 23,160.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,584.32 : 28,004.36 = 15,369.72 : x
  2. Step 2: Convert to fraction form
    18,584.32/28,004.36 = 15,369.72/x
  3. Step 3: Cross multiply
    18,584.32x = 28,004.36 × 15,369.72
  4. Step 4: Simplify right side
    18,584.32x = 430,419,171.98
  5. Step 5: Solve for x
    x = 430,419,171.98/18,584.32
  6. Step 6: Final answer
    x = 23,160.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.